Castle Green
Castle Green is a 99-year lease (66 yrs left) condominium development in District 26 (Upper Thomson / Springleaf / Mandai). It has 128 recorded private transactions. Latest sale: $1,628,888 (Aug 2026, 107 sqm, floors 01-05). Median $1,183/sqft. Prices up 37.3% over the period. 66 years lease remaining.
Where Castle Green ranks in District 26
All 18 projects ›Median psf over time
Estimate a unit at Castle Green
Based on URA transactions for this development. Pick a floor band and unit size.
Projection blends market growth with Bala's Table lease decay. Past growth does not guarantee future performance. Not financial advice.
Lease decay
99-year leasehold. Under Bala's Table (SLA's leasehold relativity model), value decays faster as the lease shortens — currently about 0.40% a year.
Price by floor
| Floor band | Median psf | Transactions |
|---|---|---|
| 01-05 | $1,157 | 62 |
| 06-10 | $1,230 | 50 |
| 11-15 | $1,287 | 16 |
Recent transactions
| Date | Floor | Type | Area | Price | psf |
|---|---|---|---|---|---|
| Aug 2026 | 01-05 | Resale | 107 sqm | $1,628,888 | $1,414 |
| May 2026 | 11-15 | Resale | 131 sqm | $2,160,000 | $1,532 |
| Apr 2026 | 01-05 | Resale | 88 sqm | $1,300,000 | $1,372 |
| Apr 2026 | 01-05 | Resale | 113 sqm | $1,560,000 | $1,283 |
| Apr 2026 | 01-05 | Resale | 107 sqm | $1,660,000 | $1,441 |
| Mar 2026 | 06-10 | Resale | 107 sqm | $1,600,000 | $1,389 |
| Mar 2026 | 01-05 | Resale | 88 sqm | $1,370,000 | $1,446 |
| Mar 2026 | 11-15 | Resale | 131 sqm | $2,150,000 | $1,525 |
| Feb 2026 | 01-05 | Resale | 88 sqm | $1,302,000 | $1,375 |
| Feb 2026 | 01-05 | Resale | 88 sqm | $1,250,888 | $1,321 |
| Jan 2026 | 01-05 | Resale | 88 sqm | $1,238,888 | $1,308 |
| Jan 2026 | 06-10 | Resale | 88 sqm | $1,260,000 | $1,330 |
| Dec 2025 | 01-05 | Resale | 88 sqm | $1,308,000 | $1,381 |
| Dec 2025 | 06-10 | Resale | 107 sqm | $1,680,000 | $1,459 |
| Nov 2025 | 06-10 | Resale | 113 sqm | $2,308,888 | $1,898 |
| Nov 2025 | 01-05 | Resale | 107 sqm | $1,500,000 | $1,302 |
| Nov 2025 | 01-05 | Resale | 113 sqm | $1,588,000 | $1,306 |
| Sep 2025 | 11-15 | Resale | 131 sqm | $2,200,000 | $1,560 |
| Aug 2025 | 01-05 | Resale | 107 sqm | $1,510,000 | $1,311 |
| Jul 2025 | 01-05 | Resale | 113 sqm | $1,600,000 | $1,315 |
| Jun 2025 | 06-10 | Resale | 113 sqm | $1,518,000 | $1,248 |
| May 2025 | 06-10 | Resale | 88 sqm | $1,400,000 | $1,478 |
| May 2025 | 01-05 | Resale | 148 sqm | $1,920,888 | $1,206 |
| Apr 2025 | 01-05 | Resale | 107 sqm | $1,580,000 | $1,372 |
| Mar 2025 | 01-05 | Resale | 88 sqm | $1,197,000 | $1,264 |
Castle Green is inside the 1 km Primary 1 priority zone for 1 primary school. When a school is oversubscribed, MOE ballots by home–school distance, and homes within 1 km are drawn first.
- This home
- School within 1 km
- School 1–2 km
- 1km ring, top priority
- 2km ring, next tier
Straight-line distances, the basis MOE uses for Home–School Distance priority. Tap a school to open it. Map © OneMap, SLA.
Private condos and apartments closest to Castle Green, with their median resale psf. Useful for comparing what Castle Green costs per square foot against nearby developments.
About Castle Green
Castle Green in District 26 (Upper Thomson / Springleaf / Mandai) is a 99-year leasehold condominium development with roughly 66 years of lease left, which makes remaining lease a meaningful price driver here. Its $1,183 psf median sits about 32% below the District 26 median, cheaper than about 83% of projects there. It has a busy transaction history, with 128 sales between 2021-09 and 2026-08, ranging from $830,000 to $2,308,888. The most recent transaction was a 107 sqm unit (floors 01-05) at $1,628,888 in Aug 2026, and the median is $1,183 psf. Floor level matters here: units on the higher 11-15 band have traded around 11% per square foot above the 01-05 band. Over the data window, prices here are up about 37.3% (about 6.7% a year). All transaction data is sourced from the Urban Redevelopment Authority (URA) and updated regularly.
How much does a unit at Castle Green cost?
The most recent transaction at Castle Green was $1,628,888 for a 107 sqm unit in 2026-08. The median price is $1,183 per square foot across 128 transactions, ranging from $830,000 to $2,308,888. Data sourced from URA.
Is Castle Green freehold or leasehold?
Castle Green is on a 99-year lease commencing in 1993, with approximately 66 years remaining. Under Bala's Table, the annual lease decay at this point is about 0.40%.
What is the price per square foot (psf) at Castle Green?
The median price at Castle Green is $1,183 psf, with transactions ranging from $851 to $1,898 psf. This is based on 128 URA-recorded transactions in District 26.
Have prices at Castle Green gone up or down?
Prices at Castle Green have increased by approximately 37.3% over the data period (around 6.7% a year). The median price is currently $1,183 psf, with the most recent sale at $1,628,888 in 2026-08.